whats wrong with my cougar the battery aint charging just replaced the alt and had the battery checked

Asked by Feb 11, 2017 at 03:22 AM about the 2002 Mercury Cougar 2 Dr I4 Hatchback

Question type: Maintenance & Repair

its a 2002 2.0 4 cillender

8 Answers

98,525

The computer controls the charging, so may need to have the system live data scanned to see if the computer is turning the alternator on or you have broken wiring in the charging circuits.

1 of 1 people found this helpful.
1,895

a new alternator . should not charge a low batt. The batt should be charged in that case . Get a multi meter and check your voltage ,batt should be 12.5 V at the batt and with the car running you should get about 14

50,785

Check for battery voltage at the big wire on the alternator with the engine turned off and the key off. If you lack battery voltage then I would suspect the fusible link in that wire is open (bad). Also check the small wires at the alternator to see if they are parted under the insulation near the connector.

1 of 1 people found this helpful.

thank you all but is there a chance it can be the mega fuse in or dos the 02 have them

98,525

Possibly, did something else happen before or during the replacement of parts? You could just check for power on the large wire on the back of the alternator, if it has power then it's not a main fuse. I think we thought that those would have already been checked.

Best Answer Mark helpful
50,785

Maybe follow some of the suggestions and stop trying to make it difficult?

that's what it was thanks

98,525

Great, checking powers and grounds are always the first step, then move onto componet testing.

Your Answer

Cougar

Looking for a Used Cougar in your area?

CarGurus has 213 nationwide Cougar listings starting at $1,421.

ZIP:

Mercury Cougar Experts

  • #1
    lisagayle
    Reputation
    2,200
  • #2
    Tom Demyan
    Reputation
    770
  • #3
    Jessica Cornelison
    Reputation
    600
View All

Related Models For Sale

Used Ford Mustang
746 Great Deals out of 42,272 listings starting at $1,300
Used Chevrolet Camaro
400 Great Deals out of 31,723 listings starting at $2,395
Used Ford Thunderbird
14 Great Deals out of 1,094 listings starting at $6,950
Used Chevrolet Corvette
235 Great Deals out of 22,105 listings starting at $2,500
Used Chevrolet Monte Carlo
17 Great Deals out of 1,353 listings starting at $995
Used Mercury Grand Marquis
29 Great Deals out of 1,718 listings starting at $1,700
Used Ford F-150
2,131 Great Deals out of 181,849 listings starting at $1,000
Used Chevrolet Impala
570 Great Deals out of 34,583 listings starting at $1,250
Used Mitsubishi Eclipse
24 Great Deals out of 1,267 listings starting at $1
Used Honda Civic
792 Great Deals out of 76,984 listings starting at $888
Used Pontiac Grand Prix
37 Great Deals out of 2,736 listings starting at $1,200
Used Pontiac Firebird
8 Great Deals out of 801 listings starting at $3,295

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.